Experimental Study of Capacitance Sensors to Test Seed-Flow

Yu Jing Sun; Hong Lei Jia; De Liang  Ren; Jing Jing  Yan; Yang  Liu

doi:10.4028/www.scientific.net/AMM.347-350.167

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 347-350Experimental Study of Capacitance Sensors to Test...

Experimental Study of Capacitance Sensors to Test Seed-Flow

Abstract:

The real-time seed-metering device performance detection is one of key techniques to ensure operation quality of a planter. A crossed E-shape plate capacitance sensor, a parallel-plate capacitance sensor and a differential tri-plate capacitance sensor, are proposed to test corn-seed flow. The detection concept and sensor structure parameters are presented. An adjustable stand is designed to investigate the impact of sensor structure and seed velocity on the outputs of capacitance sensors. The sensitivity and the feasibility of 3 sensors are studied by detecting capacitance variations at different corn-seed speeds. Experimental results show that, with average capacitance variation 0.1245pF and 0.1115 pF, respectively, the crossed E-shape plate sensor and the differential tri-plate sensor are suitable to measure corn-seed metering device performance.

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Periodical:

Applied Mechanics and Materials (Volumes 347-350)

Pages:

167-170

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.347-350.167

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Online since:

August 2013

Authors:

Yu Jing Sun, Hong Lei Jia, De Liang Ren, Jing Jing Yan, Yang Liu

Keywords:

Capacitance Sensor, Experiment, Measurement, Seed Flow

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